Natural Disasters

Below the Mesocyclone: The stovepipe tornado stretches down below the structure of the supercell mesocyclone and tornado cyclone. This would go on to become the EF-5, 2.6-mile-wide monster.

Increasing Tornado Outbreaks: Is Climate Change Responsible?

In a paper published in the journal Science, researchers looked at increasing trends in the severity of tornado outbreaks, measured by the number of tornadoes per outbreak. They found that these trends are increasing fastest for the most extreme outbreaks.

by |December 1, 2016
Hoover Dam. Photo: U.S. Bureau of Reclamation

Dammed Funding for U.S. Dams

Across the nation, large-scale water infrastructure such as dams have provided a multitude of services, from electric power and water reservoirs to flood control and containment of pollution. But federal investments in large water infrastructure projects have largely been curtailed over the past few decades.

by |October 12, 2016
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The World’s First Seasonal Lightning Forecast

At about 250 lightning flashes per square kilometer per year, the Lake Maracaibo Basin in northwestern Venezuela has the highest annual lightning rate of any place in the world.

by |July 6, 2016
A side view of the June 28, 2016, Glacier Bay landslide. Photo: Paul Swanstrom/Mountain Flying Service.

Massive Landslide Detected in Glacier Bay’s Fragile Mountains

A 4,000-foot-high mountainside collapsed in Glacier Bay National Park this week in a massive landslide that spread debris for miles across the glacier below. Scientists at Lamont-Doherty Earth Observatory are studying it to improve understanding of landslide risks.

by |July 2, 2016
Karolina Walęcik

Student Helps Engage Youth in Nepal’s Earthquake Recovery

Karolina Walęcik, a recently graduated MPA-DP student from the class of 2016, spent her summer field placement on a post-earthquake aid transparency project with the Accountability Lab in Kathmandu, Nepal.

by |June 2, 2016

Accounting for Volcanoes Using Tools of Economics

Climate scientists teamed up with an econometrics expert to develop an innovative new method for picking out past volcanic eruptions in temperature reconstructions going back millennia and gauging their impact on the climate.

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Syria’s Drought Likely Its Most Severe in More than 900 Years

“If climate change is having an impact and is making droughts worse, then we should see this in the record over several centuries—and we do,” said the study’s author, Benjamin Cook.

by |March 1, 2016
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Ready for Natural Disasters? Not So Much

A new survey of American households finds two-thirds lack adequate plans and supplies for a disaster, and half of them are not confident in the ability of government to meet the needs of children in a disaster.

by |February 9, 2016
Enhanced infrared satellite imagery (VIIRS) of Hurricane Patricia, at ~4 AM Thursday October 22 (left) and ~5 AM Friday October 23 (right). Brighter colors represent higher cloud tops, indicating a stronger storm.

Fast-Building Storms Play Key Role in Tropical Cyclone Risk

In studying climate and tropical cyclones, researchers find a weather phenomenon at play.

by |February 4, 2016
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Without the Montreal Protocol, More Intense Tropical Cyclones

Using one of the most advanced atmospheric computer models available, scientists compared our expected future with a scenario in which ozone-depleting substances had never been regulated.

by |February 1, 2016